If this is your first visit, be sure to
check out the FAQ by clicking the
link above. You may have to register
before you can post: click the register link above to proceed. To start viewing messages,
select the forum that you want to visit from the selection below.

It is somewhat surprising it took this long to get solutions to air restriction woes with upgraded N54 OEM twins. The pictures, specifications, pricing, and dyno results were released by Vargas Turbo Technology for their silicone intake tubes last month but it is always nice to see results from other sources with the same product.
BrenTuning shared a 2007 BMW E92 335i before and after with VTT Stage 2 turbos picking up nearly 70 wheel horsepower (note, this is not peak WHP but a peak gain) at redline with just the addition of the intake tubes and no additional tuning. That is a massive difference.
BrenTuning states it is around ~90 wheel horsepower gained toward redline but it looks more in the 70 range to us. A real dyno session will better shed light on this.
Keep in mind this graph is from a virtual dyno and additional tuning will accompany the intakes but this clearly highlights the backpressure issue and that the silicone intake tubes are removing a significant restriction.
Also, the area in the powerband getting the most benefit is toward redline where it is badly needed:

The Motiv 750 kits keep putting up incredible numbers and what is truly impressive is that this car is not maxed out. This E92 335i BMW belongs to BimmerBoost member pobudz and he has shared his build process on the forum. The result is just under 700 wheel horsepower at 30 psi of boost.
Here are the full specs:
- MOTIV 750 Single Turbo Kit
- MOTIV Port Fuel Injection System
- Fuel-It Stage3+ Low Pressure Fuel Pumps
- MOTIV Twin Disc Clutch
- MOTIV AEM Tuning Hardware w/ MOTIV Calibration
- COBB Tuning AccessPORT w/ MOTIV Calibration
And the dynographs:
@pobudz will be running this car in an upcoming roll on racing event and BimmerBoost looks forward to seeing how it does. Also expect 700+ wheel horsepower when they push the HTA3586 to the limit.

Very interesting race here between an N54 and N55. We have seen very big numbers from the Motiv kit including the camera car in the video which put down 695 horsepower to the rear wheels recently. The N54's have made power headlines for a while now but the N55's are coming into their own as recent Pure Turbos Stage 2 upgraded N55 dyno results show.
Still, this is a massive power disparity between the cars so how is the N55 135i able to hang in so well? Well, first of all it has a DCT transmission. The shifting advantage is massive and it pays dividends.
Additionally, the N54 is still being tweaked and was suffering from heat soak issues but it does pull up top as it should. With equivalent shift speeds or transmissions this would not be a contest.
If you want to row your own gears of course it provides more vehicle interaction and fun factor. Some people prefer the highest performance option possible which is a DCT. Either way there are options depending on where you stand but if you want the fastest straight line car you likely should go with a dual clutch.
It is also nice to see the N55's moving significantly forward after all these years being treated like the N54's red headed step child.
Motiv 750 traps 157 this run Pure Turbos Stage 2 N55 traps 152:
Subsequent run where the Pures Turbos Stage 2 takes a massive jump (it's called cheating) but gets reeled in:

So, this car is really beast.
If your friend has a MOTIV kit, and he offers to give you a ride, just say no. Because, then you will put yourself on a ramen diet for the next 3 years to be able to get your own. And, by the time it's installed, you would had died of cardiac arrest because you've been eating ramen for the past 3 years.
:D
There was some absurd EVOMS Porsche that trapped 227, and unfortunately I left right as one of the local Supercharged M3's showed up, but hopefully pobudz got that on his GoPro.
I'm sure he'll share the rest of the details, but I got word that he did trap 160 so far. This run was 153 or 154, due mainly in part to my fat ass weighing the car down most likely.

For whatever reason very fast passes along with record breaking passes keep coming from the Yas Marina drag strip in Abu Dhabi this year. Here is a very impressive run by a built motor M156 W204 C63 AMG with the full gamut of Weistec Engineering Upgrades.
The car has a 3.0 liter twin screw blower courtesy of the Weistec Engineering Stage III supercharger package. The car also features the 'bulletproof' Weistec transmission upgrade. Last but not least do not forget the M156 6.2 liter AMG engine is built using Weistec components.
There are questions regarding the fuel used as well as the wheel/tire setup but 9 second performance from built motor Weistec supercharged M156 motors is nothing new. It's the benchmark.
P.S. Can we get a slip instead of grainy video please?

For whatever reason very fast passes along with record breaking passes keep coming from the Yas Marina drag strip in Abu Dhabi this year. Here is a very impressive run by a built motor M156 W204 C63 AMG with the full gamut of Weistec Engineering Upgrades.
The car has a 3.0 liter twin screw blower courtesy of the Weistec Engineering Stage III supercharger package. The car also features the 'bulletproof' Weistec transmission upgrade. Last but not least do not forget the M156 6.2 liter AMG engine is built using Weistec components.
There are questions regarding the fuel used as well as the wheel/tire setup but 9 second performance from built motor Weistec supercharged M156 motors is nothing new. It's the benchmark.
P.S. Can we get a slip instead of grainy video please?

Ok so with the ability to flash BMW's coming to android what Android phone would you buy. I still prefer iOS over android for the refinments but I'm sure I could customize android to what I want so I need the right hardware should I go Nexus6(or whatever the newest one is) Samsung S6/S6edge or the HTC M9.
I prefer the smaller form factors but that doesn't seem to exist anymore. But I pretty much need it to be waterproof or have a case that is that I can buy ie lifeproof etc.
http://www.boostaddict.com/showthread.php?63449-N54-DAMOS-mobile-project-donation

Well, that was fast! It was only yesterday that BimmerBoost speculated pushing past 500 wheel horsepower and into new territory for the N55 would come this year and here we are a day later with a new N55 world record. Pure Turbos and BMS (Burger Tuning) have raised the bar for the N55 to 536 wheel horsepower.
Also, 494.89 lb-ft of torque at the wheels or in other words just shy of breaking 500 lb-ft of torque at the wheels. This comes as a result of a boost increase from 20 psi to 24 psi with race fuel on the Stage 2 N55 Pure Turbos turbocharger and additional JB4 tuning by Terry Burger of BMS.
The future looks bright for the N55.
Hey Guys,
Was able to get our 435 development car strapped down for a little testing. Per usual I'm short on time so I'll keep this fairly brief. This turbo works really well. So well that we're maxing out the high pressure fuel pump even with meth flowing! Might be time to work on port injection for the platform.
Test car: 435i EWG automatic.
Mods: JB4, PURE S2 Turbo, ER IC, CP, & DP, BMS Intake, and Meth single CM10 nozzle.
Test notes:
1) Ran 50% race gas with the rest a mixture of 91 with a bit of E85 in it. With 100% race gas I think our fuel pressure would hold a bit stronger and we could push the boost a bit higher.
2) The JB4 EWG board has extra AFR target fuel control. But, due to the fueling limitations, we disabled it and ran the OEM air/fuel targets. More on this down the road.
3) We're not able to back end flash map F series cars yet. As a result timing would be higher than we'd like for this power level. To work around this we've developed a DIY circuit to lower the upper timing ceiling ~2 degrees across the board. We're going to suggest this for all larger turbo F series cars. I'll throw up a DIY post tonight or tomorrow.
4) I'm not sure if the transmission is going to be able to hold this power without a reflash to raise it's observed torque. We'll find out soon.

Cadillac is doing great things lately. They are rolling out high performance cars such as the ATS-V coupe and sedan which are aimed squarely at their German rivals. It is no secret that BMW M has been and is the benchmark in the class from a driver's car perspective.
When you are on top others want to take you down and Cadillac apparently is trying to get attention by trolling BMW using their European Twitter feed. Is BMW doing this to Cadillac? No. BMW knows they are the standard so they could care less about Cadillac.
Cadillac comes off looking desperate for attention from the German brands. They also are trying to put themselves in the conversation with M by trolling M. They need to remind people that the ATS-V is an M4 competitor by taking pictures with the M4. They are taking the time to go to M, not the other way around. This kind of thing can backfire (anyone remember how it backfired for Audi back in the day with their billboard calling out BMW?) and make a company look petty instead of professional.
Cadillac does not have the performance or luxury pedigree of the Germans... yet. They are doing good things and should focus on that. Trying to get the Germans' attention by screaming for it just makes them look like they are not ready to play with the big boys. People should know the ATS-V is the M4 competitor on their own. If you have to yell to get in the conversation, you were never in it to begin with.

Those F-Series tunes sure spread out quickly didn't they? Everyone is trying to grab their piece of the pie and that is how this business works. Evotech of course is throwing their hat in the ring as well with some pretty impressive tune only numbers of 745 horsepower and 930 lb-ft of torque.
Yes, those figures are at the crank. Fortunately they provided a dynograph or this network would not be bothering with this article as it often does not for tuners that throw out big numbers without any actual support.
Uncorrected on a Dynojet the figures are 623 wheel horsepower and 777 lb-ft of torque at the wheels. That torque number is... well, it's crazy. It's much higher than anyone else and we certainly can not explain it. Other tuners are in the low 600 lb-ft of wheel torque range on a Dynojet.
What is Evotech doing differently? What other supporting mods does this car have? We do not know. We only know that they state they are using 95 octane fuel and their Stage 2 flash.
Their crank ratings may be a bit high as using 15% loss numbers (which is flawed anyway as it inflates output) puts the torque figure at 914 lb-ft and the horsepower at 732. Regardless, we are seeing some very big numbers out of the S63TU and it is just getting warmed up.

In November of last year Motiv became the first N54 tuner to break into the 800's and also set the N54 power record at 829 rear wheel horsepower on a Dynojet. That car featured the Motiv 900 turbo kit, port fuel injection system, AEM EMS, and of course their single turbocharger N54 conversion kit.
Now, what is interesting here is the AEM computer is not being used. Motiv is stressing that the tuning setup in particular is important for this 861 rear wheel horsepower figure. This of course implies that the Haltech Platinum Sport 1000 is better suited to tuning.
The reason the AEM was not used though is that the owner already had the Haltech unit. Still, the results using it and the stock DME stacked with Cobb are impressive.
It is important to note as well that this a customized Fftec single turbo kit on the stock internal N54. So, although Motiv is involved in the tuning MK Performance changed the Fftec setup to a bigger turbocharger. That makes the record somewhat tricky to attribute to a single source and we do not need to do that. Everyone involved can share the spotlight like professionals.
Certainly an interesting development though.
Motiv:
"The Platinum Sport 1000 was setup to control boost and secondary fueling. Josh's car is running the Fuel-It Stage3+ pump and the MOTIV Level 2 Port Fuel Injection System running straight e85."

Magazine test numbers are becoming useless. Nevermind the fact some manufacturers like Ferrari hold magazines hostage if the numbers do not show what they want some of them just flat out cheat. Have you ever heard of press files being used in magazine test cars?
What it means is that the car being tested is not the car you will be buying. BMW apparently had several press files for the F10 M5. This all really started with the turbo era as you could not play around with output using software back in the naturally aspirated M era the way you can now. So, some manufacturers turn up boost and disable certain safeguards (limp mode) in the ECU and send the car to be tested. It's a press beater car anyway so they do not care what happens to it.
It makes sorting out what is real and fake incredibly difficult. For example, the fastest Lamborghini Huracan in the world runs the 1/4 mile in 10.59 @ 129.12 on a 1/4 mile drag strip. That is an aftermarket ECU tuned example mind you. So how does MotorTrend get 10.6 @ 132.8 out of it? What about Car and Driver's 10.4 @ 135?
Somehow real world results on the drag strip do not match the magazines. This latest test is no exception as 12.0 @ 119 is indeed silly quick. That is not to say the F80 M3 and F82 M4 DCT can not replicate these numbers stock as they can. In negative density altitude with race gas.
So owners need great weather and race gas to match Car and Driver. Or is it more likely that Car and Driver is not testing on a drag strip (they aren't) thereby inflating their numbers? Is it also possible BMW might be passing around press files again? Is it a combo?
Who knows, but it is becoming increasingly difficult to trust magazine times as a realistic representation of what you can achieve yourself in the exact same car.
P.S. For those interested in DCT vs. manual transmission discussion Car and Driver ran 12.3 @ 116 in their manual F80 M3 test car.
P.S.S. The transmission isn't an automatic Car and Driver.
Specifications
VEHICLE TYPE:front-engine, rear-wheel-drive, 5-passenger, 4-door sedan
PRICE AS TESTED:$84,325 (base price: $65,850)
ENGINE TYPE:twin-turbocharged and intercooled DOHC 24-valve inline-6, aluminum block and heads, direct fuel injection
DISPLACEMENT:182 cu in, 2979 cc
Power: 425 hp @ 7300 rpm
Torque: 406 lb-ft @ 1850 rpm
TRANSMISSION:7-speed dual-clutch automatic with manual shifting mode
DIMENSIONS:
Wheelbase: 110.7 in
Length: 184.5 in
Width: 73.9 in Height:56.1 in
Passenger/cargo volume: 96/12 cu ft
Curb weight: 3613 lb
C/D TEST RESULTS:
Zero to 60 mph: 3.8 sec
Zero to 100 mph: 8.5 sec
Zero to 130 mph: 14.5 sec
Zero to 160 mph: 25.8 sec
Rolling start, 5-60 mph: 4.5 sec
Top gear, 30-50 mph: 1.9 sec
Top gear, 50-70 mph: 2.7 sec
Standing ¼-mile: 12.0 sec @ 119 mph
Top speed (governor limited): 163 mph
Braking, 70-0 mph: 153 ft
Roadholding, 300-ft-dia skidpad: 0.99 g
FUEL ECONOMY:
EPA city/highway driving: 17/24 mpg
C/D observed: 20 mpg

Congratulations are in order to Burger Tuning! 136 miles per hour is where the BMW N54 trap speed record stands. This was achieved at the Famoso drag strip in Southern California by the BMS 135i test car running a JB4 and Motiv single turbo kit on a stock internal N54.
There are still issues to work out and as the 60 foot indicates the launch needs some work for an impressive ET. Once @Terry@BMS sorts the issues out a good launch on high boost should finally propel the N54 into the 140+ trap speed range (and maybe the 9's?).
For now though 136.43 miles per hour is officially the fastest N54 trap in the all the land. More details in the words of @Terry@BMS below.
Terry@BMS:
I was able to attend a track day at Famoso raceway today. The scheduled start time was 9am but that got pushed back due to a rain delay. It was around noon before we got to do any runs.
I decided to race our 135i with the new MOTIV 750 kit today and just go for traps. To that end I ran on the normal 245/45/17 555Rs and just launched the car in 2nd gear with boost capped at 12-15psi.
Logs on the dyno looked great fueling wise but as soon as I started doing runs at 26psi at the track, a problem became apparent. The low pressure pump was not keeping up. So I wasn't able to do any high boost runs as I had originally planned. As the day went on fuel pressure got worse and worse.
Still, managed a respectable 136.4mph trap speed. I've attached the log of the run so you can see how bad the fuel situation was. It actually did a map4 switched right at the cones so I may have gone a bit faster had the pressure hung on a bit longer. After this run, I decided to pack it up and head home. Only to my surprise, after parking the car, it wouldn't start. An hour of diagnostics later I figured out both my inline 255 & my fuel pump controller shorted out. Luckily I was able to hotwire the primary pump with some spare wire to get the car home under its own power. I've got a Fuel-It Stage3 bucket in the garage that will go in and I'll have to probably order another controller.
Anyway next time, whenever that is, I should be able to run enough boost to hit 140mph. I figure it will take 32psi. Then I'll strap on the Hoosier slicks and start working on the launches.

The Lexus IS-F. We like to joke that it should be called IS-Fail. That really kind of summarizes the feeling of this network on the entire 'F' Performance line from Lexus. The IS-F is basically just an IS with a V8 thrown in it from the larger Lexus sedans.
Comparing the Lexus 5.0 L 2UR-GSE V8 to the BMW S85 V10 under the hood of the E60 M5 is frankly insulting to the S85. The S85 revs higher, makes over 100 hp per liter stock, has two more cylinders, has a far better looking powerband, is stronger tuned or stock, and has won 10 International Engine of the Year awards (more than any other BMW motor). The Lexus/Toyota V8 engine hasn't won an award and frankly is flat out inferior to M's best. Think what you want of that Lexus fanboys it's the truth.
This race is over before it begins. The IS-F can not hang with the E60 M5 top end especially when tuned. The IS-F may have the same displacement as the E60 M5 but clearly BMW M produces horses of higher caliber naturally aspirated breeding.
Maybe one day we will be able to take Lexus 'F' seriously as a performance brand. Considering the latest RC-F is getting destroyed by the F80/F82 M3 and M4 that will not happen any time soon. Especially when Lexus keeps trotting this dated 5.0 liter V8 engine out against modern German boosted competition.
Stop wasting our time Toyota. Fail.

Evotech raised some eyebrows with massive torque claims from their Stage 2 S63TU ECU flash tune. Tune only they claimed 777 lb-ft of torque at the wheels. That number is now over 800 lb-ft at the wheels (1090 newton meters) with additional tuning and bolt on modifications.
The extent of the modifications to this F13 M6 is unknown. A Gruppe M carbon air intake system is clearly visible and one would assume for 803 lb-ft of torque at the wheels exhaust modifications are necessary. It certainly would be nice to get a list of the full specs.
Regardless, the numbers show 673 horsepower at the wheels and 1090 newton meters of torque at the wheels. How Evotech is getting such absurdly high torque figures is anyone's guess.

We have 20-25 years left of enjoying motoring. Tops. Not only will electric drivetrains dominate the landscape you will not even be driving them. You will be a passenger. Your car will become a connected appliance rather than a tool can serve multiple purposes including one of the major aspects a car can provide: FREEDOM.
Freedom to move about how you want when you want where you want to. Sure, there are rules but a car at one time represented suddenly having a much larger world available to you. Plus, come on now, does anyone really need to be reminded of the first time they put the pedal down all the way and gingerly exceeded the speed limit? Kind of fun, wasn't it?
You will not be able to replicate that experience again but the sad thing is neither will future generations. The thrill of the automobile? It will become as thrilling as the new Iphone. Maybe as thrilling as installing a new version of navigation software.
This network already touched on this topic two years ago when Audi stated they intend to incorporate autonomous driving into cars by 2016. That's next year people.
The entire driving experience is changing and it is not necessarily for the better. The manual transmission is on life support. Internal Combustion Engines are being regulated into oblivion. Hybrid drivetrains are on the rise. Manufacturers even are piping in artificial sound because the motors are getting so quiet to try to make the driving experience as visceral as it once was. Even just having a slight rumble when you move your right foot will soon be gone unless you program the audio system to replicate it.
It's not far fetched and Elon Musk gets it:
"I don't think we have to worry about autonomous cars, because that's sort of like a narrow form of AI. It would be like an elevator. They used to have elevator operators, and then we developed some simple circuitry to have elevators just automatically come to the floor that you're at ... the car is going to be just like that. It's too dangerous. You can't have a person driving a two-ton death machine
I think it is important to appreciate the size of the automotive industrial base. There's 2 billion of them. Moving everything to autonomous vehicles would take 20 years."
The public will be sold on the safety of it and considering it will be much more convenient to simply get in a car and tell Siri (or Cortana or whomever wins that battle) the destination while sipping on a Starbucks latte.
Computers can make more precise calculations, do not suffer from fatigue, and do not get intoxicated. There is simply no way to win this battle. The argument would have to be one based on freedom and I think we all already know the populace will sacrifice their own freedom for safety in today's age.
So, enjoy it while you can. Enjoy being in control. Because soon you will not be. It's for the greater good, isn't it?
<blockquote class="twitter-tweet" lang="en"><p>To be clear, Tesla is strongly in favor of people being allowed to drive their cars and always will be. Hopefully, that is obvious.</p>&mdash; Elon Musk (@elonmusk) <a href="https://twitter.com/elonmusk/status/577946471804235776">March 17, 2015</a></blockquote>
<script async src="//platform.twitter.com/widgets.js" charset="utf-8"></script>
<blockquote class="twitter-tweet" data-conversation="none" lang="en"><p>However, when self-driving cars become safer than human-driven cars, the public may outlaw the latter. Hopefully not.</p>&mdash; Elon Musk (@elonmusk) <a href="https://twitter.com/elonmusk/status/577946893646364673">March 17, 2015</a></blockquote>
<script async src="//platform.twitter.com/widgets.js" charset="utf-8"></script>